Although
the sun has set on this night in Molokai Hawaii, amazingly we are
able to see what looks to be a rainbow.
Commonly called a "moonbow",
this nighttime display is formed in the same way that a normal
rainbow is, by both
reflection of the water droplets back at the observer, and refraction
of longer
wavelengths less than shorter ones resulting in the separation of
colors which forms a spectrum
of light in the sky. The moon, located behind the photographer as is
customary with rainbows, however is providing the light to which the
rainbow is being created instead of the sun. Usually for there to be
such an occasion the moon will have to be in its full phase, as it is
here, just a couple days past this time.
No comments:
Post a Comment